March 2026 is officially a month for the history books at General Motors, Chevrolet & GMC.
Recently, two of the most important manufacturing plants in the country hit massive production number records. Within days of each other, Flint Assembly and Fort Wayne Assembly both shattered their historic production records.
Flint Assembly, where the heavy duty Silverado HD and Sierra HD are manufactured, just produced its 16 millionth vehicle. The milestone rig was a Silverado 2500 HD LTZ.
Right around the same time, Fort Wayne Assembly, where the light duty Silverado and Sierra are built, recently produced its 11 millionth vehicle. That honor went to a Silverado 1500 High Country.
We are talking about a staggering combined 27 million vehicles rolling off the assembly lines between Flint Assembly in Michigan and Fort Wayne Assembly in Indiana.
The Beating Heart of GM Truck Manufacturing
As truck guys, we know these plants are the lifeblood of the Chevrolet and GMC brands.
Let us break down exactly what rolled off the line to secure these historic milestones.
Flint Assembly Hits 16 Million Vehicles
Flint Assembly is the longest running GM assembly site in North America. They have been building vehicles since 1947.
Before they became the undisputed king of heavy duty truck production, this plant built the very first 300 Corvettes in 1953.
Today, it is all about heavy hauling.Earlier this month, Flint celebrated its 16 millionth vehicle. The milestone rig was a Lakeshore Blue Metallic Chevrolet Silverado HD 2500 Crew Cab LTZ.
But the story actually gets better for diesel fans.
Under the hood of that historic truck sits the 3.5 millionth Duramax diesel engine produced by DMAX. That is a massive double milestone for GM.
The new owner of this Silverado is customer Andy Sanford. He was invited to the plant to watch his truck go through Final Assembly and Dynamic Vehicle Testing.
Sanford is the perfect guy to take home this truck. His previous rig is a 2016 Silverado HD Duramax that is currently approaching one million miles on its original factory injectors.
That is exactly why we love the Duramax platform.
Flint Assembly currently handles production for both the Chevy heavy duty lineup and the GMC Sierra HD.
Do you own a Flint built truck? Head over to our 2020 to 2026 Silverado HD and Sierra HD forums and show it off.
Fort Wayne Assembly Reaches 11 Million
Not to be outdone, Fort Wayne Assembly hit a massive milestone of its own on March 25, 2026.
The Indiana facility officially built its 11 millionth vehicle.
The honor went to a stunning Black 2026 Chevrolet Silverado 1500 High Country.
In a great move, this specific half ton truck was purchased by a fellow GM employee. Ken Zawisa traveled to the plant with his father to personally drive his new High Country off the line.
Fort Wayne is the crown jewel for light duty truck manufacturing. They handle the bulk of production for the 1500 series trucks.
If you drive a modern GMC Sierra 1500 or Chevy half ton, there is a very good chance it came from Indiana.
FORT WAYNE, Ind. — A black 2026 Chevrolet Silverado 1500 High Country made history Wednesday, March 25, 2026, as the 11 millionth vehicle to roll off the line at General Motors’ Fort Wayne Assembly plant.
The milestone vehicle was purchased by fellow GM employee Ken Zawisa, who… pic.twitter.com/9ojW4NQtDA— Johnette Cruz (@thejohnettecruz) March 26, 2026
The V8 is Here to Stay
This 11 millionth vehicle milestone comes at a crucial time.
The Fort Wayne plant is currently undergoing a massive $632 million investment project. GM is upgrading the conveyors and tooling for the next generation of Chevrolet Silverado and GMC Sierra.
Yes, GM is still heavily investing in V8 power for the Sierra and Silverado lineup.
If you want to know what those next generation trucks might look like, be sure to read our exclusive report on the 2027 Chevy Silverado 5.7L V8 leaks.
Are you waiting on a new half ton to be built at Fort Wayne? Join the conversation in our 2019 to 2026 Silverado 1500 and Sierra 1500 forums to track your order.
Thank you!
A massive shoutout goes to reader Ryan B for putting these historic production milestones on our radar today.
We also want to give full credit to the local team at WIBC for their great coverage of the Fort Wayne Assembly news.
Keep sending those tips in so we can keep bringing you the latest updates on the trucks we all love to drive.
Zane Merva is the Executive Editor of GM-Trucks.com and the President of the New England Motor Press Association (NEMPA). A veteran automotive journalist with over 26 years of experience, Zane is a designated ‘Car Talk’ Expert and has been a contributor to The Boston Globe. He possesses a unique evaluative perspective, having road-tested more than 2,000 vehicles across every major manufacturer. While he is a recognized authority on General Motors truck platforms—including the Silverado, Sierra, and Colorado—his expertise is grounded in decades of deep competitive analysis that few in the industry can match. His commentary has been featured by major OEMs and media outlets, including Hyundai and PR Newswire